This beetle occurs in the Rocky
Mountains and in the Sierra Nevada mountains of California. It is
also found further north in Idaho, Montana, Oregon, Alberta, and
British Columbia (Brown 1956). There is considerable individual
variation in the patterns of its wings, and you can see that beetles
from Colorado have a different wing pattern than those from
California. I plan to measure wing pattern variation and determine
whether it is related to environmental factors such as elevation and
latitude.

When new adults emerge from the
pupae, the spots are light green, but they change to bright red by
the following spring. These are black and white images. Click on
them to see a closer view.